package com.zzyl.nursing.service;

import cn.hutool.core.util.ObjectUtil;
import cn.hutool.http.HttpUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.zzyl.common.exception.base.BaseException;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

@Service
public class WechatServiceImpl implements WechatService {
    // 登录
    private static final String REQUEST_URL = "https://api.weixin.qq.com/sns/jscode2session?grant_type=authorization_code";

    // 获取token
    private static final String TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";

    // 获取手机号
    private static final String PHONE_REQUEST_URL = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=";


    @Value("${wx.appid}")
    private String appid;

    @Value("${wx.secret}")
    private String secret;


    /**
     * 获取openid
     *
     * @param code
     * @return
     */
    @Override
    public String getOpenid(String code) {
        Map<String, Object> paramMap = new HashMap<String, Object>();
        paramMap.put("appid", appid);
        paramMap.put("secret", secret);
        paramMap.put("js_code", code);
        String result = HttpUtil.get(REQUEST_URL, paramMap);

        JSONObject jsonObject = JSONUtil.parseObj(result);
        if (ObjectUtil.isNotEmpty(jsonObject.getInt("errcode"))) {
            throw new BaseException("获取openid失败");
        }
        return jsonObject.getStr("openid");
    }

    /**
     * 获取手机号
     *
     * @param detailCode
     * @return
     */
    @Override
    public String getPhone(String detailCode) {
        String token = getToken();
        String url=PHONE_REQUEST_URL+token;
        Map<String, Object> parmaMap = new HashMap<>();
        parmaMap.put("code", detailCode);
        String result = HttpUtil.post(url, JSONUtil.toJsonStr(parmaMap));

        JSONObject jsonObject = JSONUtil.parseObj(result);
        if(jsonObject.getInt("errcode") != 0){
            throw new BaseException("获取手机号失败");
        }

        return jsonObject.getJSONObject("phone_info").getStr("phoneNumber");
    }


    /**
     * 获取token
     *
     * @return
     */
    public String getToken() {
        Map<String, Object> paramMap = new HashMap<>();
        paramMap.put("appid", appid);
        paramMap.put("secret", secret);
        String result = HttpUtil.get(TOKEN_URL, paramMap);
        JSONObject jsonObject = JSONUtil.parseObj(result);
        if (ObjectUtil.isNotEmpty(jsonObject.getInt("errcode"))){
            throw new BaseException("获取token失败");
        }
        return jsonObject.getStr("access_token");

    }





}
